Error demodulation coherent beam laser system

A technology of coherent beam forming and laser system, applied in the field of laser, can solve the problems of multiple errors of sub-beams, difficult detection and control, etc.

Active Publication Date: 2017-03-15
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

The system can simultaneously realize the precise detection of the two-dimensional angle error of each sub-beam in the coherent beam-combining laser system and the precise detection of the back-and-forth jitter between sub-beams, which solves the problem of difficult detection and control due to the large number of sub-beams and errors in the coherent beam-combining laser system the puzzle

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  • Error demodulation coherent beam laser system
  • Error demodulation coherent beam laser system
  • Error demodulation coherent beam laser system

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, in order to understand the structure, composition and work flow of the present invention more clearly, but this should not limit the protection scope of the patent of the present invention.

[0028] figure 1 It is a schematic diagram of an embodiment of the error demodulation coherent beam combination laser system of the present invention. It can be seen from the figure that the error demodulation coherent beam combination laser system of the present invention includes a laser beam array, a small-diameter mirror array, and a focusing unit. It is characterized in that it also includes a group Beam far-field detection unit and sub-beam far-field positioning unit, the laser beam array includes the first sub-beam 1, the second sub-beam 2, the third sub-beam 3, the fourth sub-beam 4, the fifth sub-beam 5 and the first Six sub-beams 6, the small-aper...

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Abstract

The invention discloses an error demodulation coherent beam combination laser system. The system comprises a laser beam array, a small diameter reflecting array, a focusing unit, a beam combination far field detecting unit and a sub-beam far field positioning unit, wherein the laser beam array comprises a plurality of sub-beams; the small diameter reflecting array comprises a plurality of small diameter reflecting lenses; the focusing unit comprises a reflecting lens and a focusing lens; the beam combination far field detecting unit comprises a beam splitter, a rotary light selecting plate, a focusing lens and a CCD camera; the sub-beam far field positioning unit comprises a reflecting lens, an array lens, a focusing lens and a CCD camera. The system can realize precision detection of the two-dimensional angle error of each sub-beam in a relevant beam combination laser system and the precision detection of back and forth vibration among sub-beams at the same time, and solves the problem that detection and control are difficult because the quantity of sub-beams and errors are large in the relevant beam combination laser system.

Description

technical field [0001] The invention relates to the field of lasers, in particular to a coherent beam combining laser system, which is mainly applicable to high-energy and high-power laser systems and ultra-short and ultra-strong laser systems. Background technique [0002] High-energy, high-power and ultra-short ultra-intense lasers are a major trend in current international laser technology research. At the same time, the development of laser technology has greatly promoted the research of basic physics, providing an unprecedented platform for human beings to explore the origin of matter, the unknown universe and energy issues. After years of development, an international consensus has been reached: every step of laser intensity increases, the depth of physical research increases by one layer. Leveraging on the development of chirped pulse amplification technology for 30 years, the State Key Laboratory of Strong Field Laser Physics of Shanghai Institute of Optics and Fine...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/10
CPCG02B27/1006
Inventor 李朝阳冷雨欣李儒新王乘李帅徐至展
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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